ES2967289T3 - Process for manufacturing toilet paper for dog feces and toilet paper manufactured in this way - Google Patents

Abstract

A method is disclosed for manufacturing a sanitary paper for handling dog feces, the paper having good water resistance, moisture resistance, elasticity and dispersibility in water, the sanitary paper being used to collect and transport feces to eliminate the dog feces in a toilet. Since the toilet paper manufactured by the described method has water resistance, appropriate wet strength, flexibility and water dispersibility, the toilet paper is easy to sanitarily wrap and transport dog feces, and the toilet paper does not cause clogging of a odorless when deposited there along with the dog's feces. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Process for manufacturing toilet paper for dog feces and toilet paper manufactured in this way

CROSS REFERENCE TO RELATED APPLICATION

The present application claims priority to Korean Patent Application No. 10-2021-0015989, filed on February 4, 2021.

BACKGROUND OF THE INVENTION

1. Field of invention

The present disclosure relates to a process for manufacturing a sanitary paper for handling dog feces and a sanitary paper manufactured therefrom. More particularly, the present disclosure relates to a process of manufacturing a sanitary paper for handling dog feces before flushing the dog feces into a toilet, the sanitary paper having water resistance, moisture resistance, elasticity and dispersibility in water to last until the elimination of dog feces, and also refers to a sanitary paper manufactured by the procedure.

2. Description of the related art

In general, a companion animal is an animal that lives with people. Such an animal provides various benefits to humans, and pet owners see these companion animals as living beings and not just toys. In particular, among companion animals, it can be said that a dog is an animal that provides great emotional satisfaction to humans.

There are about 5.98 million pet dogs in Korea (2019, Ministry of Agriculture, Food and Rural Affairs statistics), and the number of pet dogs to appease human loneliness is expected to increase by at least 5% every year. year in the future due to the increase in single-person households and the elderly population. Furthermore, a similar trend is also observed in neighboring China. According to China's Shenyang Bureau of Commerce, the number of pet dogs in China was estimated to be approximately 55.03 million in 2019, and the number of dogs in China is expected to increase by at least 2% each year in the future.

Pet dogs also defecate like humans. Dogs usually defecate once a day on average and depending on how often owners walk their dogs, dogs sometimes defecate two or three a day, but this is an exceptional case and once a day is the average.

According to paragraph 12 of Article 3 (Types of Misdemeanors) of the Law on Punishments for Misdemeanors, a law related to the disposal of dog feces, "spitting, urinating or having to urinate in a street, park or other places where many people gather or pass by" is prohibited. The duty to dispose of pet feces is stipulated to punish those who bring animals such as dogs or other animals and do not remove the feces when the animals defecate. Furthermore, section 2 of article 13 of the Animal Protection Law establishes that the handling of pet feces will be as follows: when leaving with the registered animal, the owner, etc., of a pet animal must be safety equipment, such as a leash, and must immediately pick up excrement (in the case of urine, it is prohibited to urinate in public spaces inside buildings, such as elevators and stairs in an apartment building, and on equipment on which people can be placed or sat on), such as benches or wooden chairs), as prescribed by the Ministry of Agriculture, Food and Rural Environment.

When walking a dog, the dog owner should tie a leash around the dog's neck, connect a leash to the chain to control the dog, and put a muzzle on the dog.

When walking a dog, it may defecate and the owner must monitor the feces. As a general procedure for disposing of dog feces, the feces are placed in plastic bags and disposed of as general garbage, but this procedure has the problem of causing environmental pollution when incinerated. A plastic bag that does not break down easily and causes air pollution when incinerated, but most dog feces are placed in plastic bags for disposal.

The number of plastic bags used to handle dog feces is not small. Assuming that the current number of domestic dogs is 5.98 million, when a dog walks once a day and defecates during this time, 5.98 million plastic bags are used per day to dispose of feces.

Recently, the average temperature of the earth's atmosphere is increasing due to the greenhouse effect caused by global warming, and environmental problems such as abnormal weather are continuously becoming problems around the world. In Korea, environmental problems such as yellow dust, fine dust and air pollution, which are directly related to the nation's health, are emerging as major social problems that need to be solved. Continued attention is being paid to ways to reduce the use of plastics that do not break down easily and emit toxic substances such as dioxins during incineration.

As interest in environmental pollution grows, efforts continue to be made toward an environmentally friendly society. As part of the efforts, there is a tendency to find and develop alternatives to conventional resources that have been used in various industries. For this reason, biodegradable plastics have been in the spotlight. However, Professor Richard Thompson from the Department of Marine Biology at the University of Plymouth, UK, said: "As a result of looking at an eco-bag that is more than 10 years old, it has only been transformed into millions of microscopic pieces of plastic in place of decomposition". Also, when polylactic acid (PLA) plastic, which is a biodegradable plastic, is used instead of the plastic bag, when it is not sorted separately, it is eventually treated as general waste, so the same problem exists.

Therefore, it is environmentally friendly and hygienic to collect feces using paper towels, such as toilet paper, or paper, such as kitchen towels and hand towels, and dispose of them in the toilet instead of using plastic to dispose of dog feces.

However, existing toilet paper or paper towels have good absorbency but poor water resistance, so when collecting dog feces with paper, there is a problem of wet feces escaping from the paper. In addition, paper towels cause the problem of clogging the toilet due to poor water dispersibility caused by excessive resistance to moisture.

Related technical documents

Patent document

Korean Utility Model Publication No. 20-2016-0002286 (published on July 1, 2016), titled "Portable Packaging Box for Wet Tissues and Defecation Bags."

Patent literature JPH10227787 and WO02020045137 both refer to sheets of paper for collecting feces.

SUMMARY OF THE INVENTION

The present disclosure has been made in view of problems arising in the related arts, and an object of the present disclosure is to provide a process for manufacturing a sanitary paper for collecting and transporting dog feces and a sanitary paper manufactured by the method. Toilet paper is used to collect and transport dog feces before disposing of it in the toilet. Toilet paper is given water resistance, sufficient wet strength, elasticity and dispersibility in water to fulfill its purpose.

Another objective of the present disclosure is to provide a method for manufacturing a toilet paper that is appropriately wrinkled during a drying process so that the toilet paper is easy to wrap around dog feces so that it does not drip.

A further object of the present disclosure is to provide a toilet paper for dog feces, the toilet paper having adequate water resistance, wet strength, elasticity and water dispersibility so as not to clog a toilet when flushed down a toilet along with the feces. of dog.

To achieve the objectives, one aspect of the present disclosure provides a method for manufacturing a sanitary paper for dog feces, including the method: performing hydrophilization to impart water resistance to a sanitary paper by adding 1 to 1.5% by weight of an alkylketene dimer (QRA: Alkylketene Dimer), which is a neutral sizing agent as an internal sizing agent, for a sanitary paper raw material; adding 1 to 1.5% by weight of polyamide polyamine-epichlorohydrin (PAE) that serves as a wet strength enhancer to the toilet paper raw material to impart wet strength and water dispersibility to the toilet paper; creping a toilet paper produced in this way at a speed of 10 to 15 folds/cm when the toilet paper is dried to impart elasticity to the toilet paper and prevent faeces from leaking.

In the present disclosure, 1.3% by weight of an alkyl ketene dimer (AKD), which is a neutral sizing agent, can be added as an internal sizer, so that the sanitary paper acquires water resistance.

In one embodiment of the present disclosure, 1.3% by weight of PAE, which is a wet strength enhancer, may be added so as to impart wet strength and water dispersibility to the sanitary paper.

In one embodiment of the present disclosure, the toilet paper may be creped at a rate of 13 plies/cm during the drying process to impart elasticity to the toilet paper and prevent feces from escaping from the toilet paper wrapping the feces.

In one embodiment of the present disclosure, the toilet paper raw material may include biodegradable cellulose such as recycled pulp.

Another aspect of the present disclosure provides a sanitary paper manufactured by the process according to an embodiment of the present disclosure for handling dog feces, the sanitary paper having adequate water resistance, moisture resistance, elasticity and water dispersibility. This disclosure. Toilet paper can be made from a raw material that contains biodegradable cellulose, such as recycled pulp, etc.

Since toilet paper has adequate water resistance, moisture resistance, elasticity and water dispersibility, when the toilet paper used to wrap dog feces is disposed of in a toilet, it is possible to prevent the toilet from clogging.

According to the present disclosure, it is possible to prevent a toilet from clogging when dog feces wrapped with the toilet paper are disposed of in the toilet because the toilet paper has adequate water resistance, moisture resistance, elasticity and water dispersibility. Therefore, with the use of toilet paper it is possible to comfortably eliminate dog feces.

Additionally, since the toilet paper is wrinkled during the drying process to become corrugated, it is possible to easily wrap the dog feces with the toilet paper and prevent the dog feces from leaking when disposing of the dog feces.

Furthermore, the sanitary paper of the present disclosure allows dog feces to be collected and transported without using plastic bags that are not biodegradable. Since the sanitary paper of the present disclosure is made of biodegradable substances, it does not cause environmental pollution unlike plastic bags that cause air pollution when incinerated for disposal and that take a long time to decompose when disposed of in a landfill. .

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objectives, features and advantages of the present disclosure will be more clearly understood from the following detailed description taken together with the accompanying drawings, in which:

Figure 1 is a perspective view illustrating a dog feces sanitary paper, according to an embodiment of the present disclosure.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Hereinafter, some embodiments of the present disclosure will be described in detail with reference to exemplary drawings. When adding reference numbers to components on each drawing, the same components are assigned the same reference numbers to the extent possible, even if they are indicated on different drawings. Furthermore, in describing the embodiment of the present disclosure, when it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present disclosure, the detailed description thereof will be omitted.

Furthermore, in describing the components of the embodiment of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. These terms serve only to distinguish components from other components, and the essence, order or arrangement of the components is not limited by the terms. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to the other component, but another component is between each component may be "connected", "coupled" or "connected."

The present disclosure relates to a process for manufacturing a toilet paper for handling dog feces so that the dog feces can be collected and flushed down the toilet.

The present disclosure provides a method for manufacturing a sanitary paper for handling dog feces, the method including: a step of performing hydrophilization to impart water resistance to a sanitary paper by adding 1 to 1.5% by weight of an alkylketene dimer (AKD: Alkylketene Dimer), which is a neutral sizing agent as an internal sizing agent, to a toilet paper raw material. internal sizing; a step of adding 1 to 1.5% by weight of polyamide polyamine-epichlorohydrin (PAE) as a wet strength enhancer to the sanitary paper raw material so that the sanitary paper produced has wet strength and water dispersibility ; and a step of performing creping processing at a speed of 10 to 15 folds/cm when drying the produced toilet paper to provide elasticity to the toilet paper and prevent faeces from sticking to the user's hand.

The present disclosure imparts water resistance, appropriate wet strength, elasticity and water dispersibility to the toilet paper through the manufacturing process so that the toilet paper can be conveniently used to handle dog feces. Therefore, even when dog feces are collected with toilet paper and then disposed of in the toilet, the feces can be disposed of hygienically and conveniently without causing clogging of the toilet. Furthermore, since the toilet paper is curled into wrinkles during the drying process, it is easier to wrap the dog feces with the toilet paper according to the present disclosure. Therefore, faeces can be easily manipulated and managed without leaking from the paper.

The configuration and operation of this disclosure will now be described.

Paper is obtained by dispersing finely ground wood-derived cellulose in water to prepare a dispersion, placing a sieve with fine holes in the dispersion, taking the sieve, dehydrating the solid material left on the sieve, and drying the solid material to obtain paper. Making paper waterproof is called sizing processing.

This sizing process is divided into internal sizing which is done before drying the paper in the papermaking process and external sizing which is done after drying the paper. This disclosure relates to the internal sizing process. Internal sizing refers to the process of placing a sizing agent into a paper raw material that is a mixture of pulp, water, filler, etc. before the paper drying process.

Conventionally, toilet paper or paper towels were used to wrap dog feces instead of plastic bags and dispose of them in a toilet, but the existing paper, which lacked water resistance, was difficult to use due to the problem of feces They escaped from the paper.

In the present disclosure, in terms of supplementing the insufficient water resistance of the existing sanitary paper, an alkyl ketene dimer (AKD), a neutral sizing agent, was added to the paper as an internal sizer, to hydrophobicize the paper appropriately.

The hydrophobic property refers to the property of not combining easily with water molecules. Generally, when a material is non-polar, the material is hydrophobic. Additionally, the hydrophobic (lipophilic) material does not mix with water, so round water droplets form on the material due to surface tension.

A representative of internal sizing agents is AKD (CAS Registration Number 144245-85-2), which is a neutral sizing agent. AKD is a common sizing agent widely used at home and abroad. It is available in emulsion form so AKD can mix well with water. The emulsion contains particles, each of which has a size of 0.1 to 5 pm and a solids content of about 15% to 25%.

The AKD emulsifies the wax with a substance such as cationic starch to make the wax more miscible in water when the paper is in its original state before the paper forms a paper network. The emulsified wax is placed on the paper and the outer film of emulsified wax breaks down in the process of forming and drying the paper, leaving the wax inside the paper, giving the paper hydrophobicity to water.

In the present disclosure, 1 to 1.5% by weight of an AKD, which is a neutral sizing agent for internal sizing, is added to the raw material of sanitary paper to make the produced sanitary paper hydrophobic in order to to provide water resistance to toilet paper for handling dog feces. Here, when less than 1% by weight of AKD is added, the amount of water absorbed in the toilet paper will increase excessively and the dog's feces will leak when wrapped with toilet paper, and when more than 1.5% is added in weight of AKD, the amount of water absorbed into the toilet paper will decrease excessively and the water dissolving property of the toilet paper will deteriorate, which may cause the problem that the toilet paper cannot be flushed into a toilet.

Here, more preferably, 1.3% by weight of an AKD, which is a neutral sizing agent for internal addition, can be added to the toilet paper raw material.

On the other hand, strength enhancers are divided into surface sizing agents and internal addition strength enhancers according to the procedure of use. The internal addition strength enhancer used in the present disclosure is added internally to the pulp slurry for the purpose of improving strength (by promoting hydrogen bonds between pulp fibers) or improving fixability of fillers and compounds. microfibers. Wet strength enhancers are sometimes added to special-purpose paper to give it strength when wet. Examples of wet strength enhancers include melamine resin, polyethyleneimine and polyamide polyamine resin.

To maintain a predetermined level of strength even when wet with water, PAE is added to paper, such as cosmetic tissues or paper towels, with wet strength enhancers. Generally, 12.5% by weight of PAE at 3% or more by weight has been added to the wet part. For this reason, when a cosmetic tissue or paper towel is flushed directly into the toilet, the cosmetic tissue or paper towel may not flush and may cause clogs.

In this case, when toilet paper is disposed of in the toilet, the paper must dissolve well in water so as not to clog the toilet.

In the present disclosure, the water dispersibility of the paper was adjusted, where wet strength enhancer was added to the paper in an amount less than the added level of wet strength enhancer of a cosmetic tissue or paper towel for wrapping the dog feces with toilet paper so that it flushed without clogging when flushed into a toilet.

To this end, in the present disclosure, the level of added PAE was adjusted from 1 to 1.5% by weight in the sanitary paper raw material to provide adequate wet strength and water dispersibility, in which the wet strength It is about 10% of the dry strength can be manifested so that it does not break even when the dog feces is wrapped with toilet paper, unlike cosmetic tissues or paper towels, and can be flushed without clogging the toilet .

When the addition level of PAE, which is the wet strength enhancer, is less than 1% by weight, the wet tensile strength of toilet paper is too weak and there is the problem of easy leakage when wrapping. dog feces On the other hand, when the addition level of PAE, which is the wet strength enhancer, is more than 1.5% by weight, the wet tensile strength is too strong and there is a problem that it does not may flush down the toilet due to poor water dissolution properties.

Here, more preferably, 1.3% by weight of PAE can be added to the raw material for toilet paper.

In the manufacturing process of the toilet paper for handling dog feces of the present disclosure, an AKD, which is a neutral sizing agent for internal use, can be added to provide water resistance in the raw material of the toilet paper, and sequentially PAE, which is a wet strength enhancer, can be added to provide wet strength and water dispersibility. Additionally, the addition of AKD and PAE can be added in reverse order or can be added simultaneously when necessary, such as under site conditions.

On the other hand, in the paper making process, the paper undergoes a creping process in which a special blade (creping sheet) forms wrinkles on the paper from the drying drum and thickens the paper in this process. The structure of the paper changes and many transverse folds are formed, making the final product soft and stretchable.

In the present disclosure, since rough wrinkles instead of fine wrinkles are formed in the existing toilet paper, when the dog's feces is wrapped with the toilet paper, the toilet paper has excellent elasticity and closes easily, but the contact surface with dog feces it is small so that the feces do not escape.

Figure 1 shows a perspective view of a sanitary paper 100 for handling dog feces according to an example of the present disclosure.

The sanitary paper 100 according to the present disclosure is provided that to ensure elasticity and prevent feces from reaching the user's hands, creping of 10 to 15 folds/cm can be carried out in the manufacturing process of the sanitary paper 100 above.

In the process of drying toilet paper using a Yankee dryer, etc., wrinkles may be formed in the transverse direction of the paper by creping; Generally, fine wrinkles of 20 to 40 folds/cm are formed. However, in the present disclosure, unlike cosmetic tissues or paper towels, toilet paper forms a rough fold of 10 to 15 folds/cm to have excellent elasticity and prevent dog feces from leaking while being It closes easily, thus reducing the area in direct contact with the dog's feces by wrapping the dog's feces with the 100 sanitary paper.

When the sanitary paper 100 is coarsely wrinkled so that the number of folds is less than 10 folds/cm, the problem of reducing the strength of the paper arises. There is a problem that the dry tensile strength decreases and therefore the wet tensile strength also weakens. On the contrary, when the toilet paper is finely wrinkled so that the number of folds is greater than 15 folds/cm, the contact area with water increases as the amount of water absorption increases. That causes the problem that the area in contact with the stool increases and the stool leaks out.

Here, more preferably, creping can be performed at a rate of 10 to 15 folds per 1 cm in the above sanitary paper 100 manufacturing process.

The sanitary paper 100 for handling dog feces according to an example of the present disclosure may be provided with water resistance, moisture resistance, elasticity and water dispersibility together in the manufacturing process for collecting dog feces and disposing of it in a toilet. .

Paper is originally made by processing wood, but it can also be made by reusing recovered paper, which is waste paper, and when paper is made by reusing recovered paper, manufacturing costs can be reduced and the quality can be good.

Therefore, sanitary paper 100 according to the present disclosure can be prepared by including biodegradable cellulose such as recycled pulp as paper raw material. Additionally, milk cartons can be used as raw material for regenerated pulp.

Hereinafter, the present disclosure will be described in more detail by way of examples. These examples are only to illustrate the present disclosure, and it will be apparent to those skilled in the art that the scope of the present disclosure should not be construed as limited by these examples.

Example

The 100 sanitary paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using the Crescent paper machine of Company S in Sejong City. Sanitary paper 100 can be made from a milk carton which is biodegradable cellulose made from recycled pulp as raw material. After adding 1.3% by weight of AKD, which is an internal additive neutral sizing agent with a solids content of 20%, to the machine box where the regenerated milk carton pulp was introduced, 1.3 % by weight of polyamide PAE which is a wet strength enhancer was added sequentially at a solids content of 12.5%. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at 13 plies/cm by creping in a Yankee dryer to prepare a 100 wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the sanitary paper 100 prepared by the above process were measured.

*To measure Cobb size, place the paper on the Cobb size tester, attach a measuring ring, and fix the paper with the measuring ring. The paper size should be the size that fits inside the measuring ring. Generally, the paper is cut to 15cm*15cm. Pour 100ml of water, pour out the water 2 minutes later, remove the water using filter paper, etc., and then measure the weight difference between the paper absorbed in water and the paper without absorption. When the difference value is multiplied by 100, the Cobb size is also a numerical value.

* For water dispersibility, that is, a water dispersibility test, a rectangular test piece with a side length of 98 mm is folded horizontally and vertically in 300 ml of water at 20 °C in a 300 beaker. ml and dissociate with stirring speed of 600 rpm using a magnetic stirrer. The test was carried out in such a way that the time required until the paper was completely dissolved was measured. The measurement results of the above elements, such as loosening properties in water, were tested 5 times and the average value was obtained and displayed.

Comparative example 1

The toilet paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using Crescent paper machine of Company S in Sejong City. Toilet paper can be made from a milk carton which is biodegradable cellulose made from recycled pulp as a raw material. After adding 0.5% by weight of<a>K<d>, which is an internal additive neutral sizing agent with a solids content of 20%, to the machine box where the cardboard pulp was introduced regenerated milk, 1.3% by weight of polyamide PAE which is a wet strength enhancer with a solids content of 12.5% was sequentially added. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at 13 plies/cm by creping in a Yankee dryer to prepare a wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the toilet paper prepared by the above process were measured.

Comparative example 2

The toilet paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using Crescent paper machine of Company S in Sejong City. Toilet paper can be made from a milk carton which is biodegradable cellulose made from recycled pulp as a raw material. After adding 2.0% by weight of<a>K<d>, which is an internal additive neutral sizing agent with a solids content of 20%, to the machine box where the cardboard pulp was introduced regenerated milk, 1.3% by weight of polyamide PAE which is a wet strength enhancer with a solids content of 12.5% was sequentially added. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at 13 plies/cm by creping in a Yankee dryer to prepare a wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the toilet paper prepared by the above process were measured.

Comparative example 3

The toilet paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using Crescent paper machine of Company S in Sejong City. Toilet paper may be manufactured from a milk carton that is biodegradable cellulose made from recycled pulp as raw material. After adding 1.3% by weight of AKD, which is an internal additive neutral sizing agent with a solids content of 20%, to the machine box where the regenerated milk carton pulp was introduced, 0.5 % by weight of polyamide PAE which is a wet strength enhancer with a solids content of 12.5% was sequentially added. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at 13 plies/cm by creping in a Yankee dryer to prepare a wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the toilet paper prepared by the above process were measured.

Comparative example 4

The toilet paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using Crescent paper machine of Company S in Sejong City. Toilet paper can be made from a milk carton which is biodegradable cellulose made from recycled pulp as a raw material. After adding 1.3% by weight of AKD, which is an internal additive neutral size with a solids content of 20%, to the machine box where the regenerated milk carton pulp was introduced, 2.0% by weight weight of polyamide PAE which is a wet strength enhancer with a solids content of 12.5% was sequentially added. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at 13 plies/cm by creping in a Yankee dryer to prepare a wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the toilet paper prepared by the above process were measured.

Comparative example 5

The toilet paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using Crescent paper machine of Company S in Sejong City. Toilet paper can be made from a milk carton which is biodegradable cellulose made from recycled pulp as a raw material. After adding 1.3% by weight of<a>K<d>, which is an internal additive neutral sizing agent with a solids content of 20%, to the machine box where the cardboard pulp was introduced regenerated milk, 1.3% by weight of polyamide PAE which is a wet strength enhancer was added sequentially a solids content of 12.5%. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at 13 plies/cm by creping in a Yankee dryer to prepare a wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the toilet paper prepared by the above process were measured.

Comparative example 6

The toilet paper, which has water resistance, moisture resistance, elasticity and water dispersibility together for collecting dog feces and disposing of it in a toilet, was manufactured with a basis weight of 33 g/m2 using Crescent paper machine of Company S in Sejong City. Toilet paper can be made from a milk carton which is biodegradable cellulose made from recycled pulp as a raw material. After adding 1.3% by weight of AKD, which is a neutral internal sizing agent with a solids content of 20%, to the machine box where the regenerated milk carton pulp was introduced, 1.3% by weight of polyamide PAE which is a wet strength enhancer with a solids content of 12.5% was sequentially added. The wrinkles of the paper to which AKD and PAE were sequentially added were creped at a speed of 13 folds/cm by creping in a Yankee dryer to prepare a wrinkled sanitary paper.

The Cobb size diagram, dry and wet tensile strength and water dispersibility of the toilet paper prepared by the above process were measured.

Table 1 shows the Cobb size, drying and wet tensile strength, and water loosening properties of the dog feces handling toilet paper in the above embodiment and comparative examples 1 to 6.

Table 1

From the above results, the effects of this invention can be summarized as follows: When less than 1% by weight of AKD is added to the toilet paper raw material, the absorption of Cobb may increase excessively and dog feces may leak when dog feces are wrapped.

The exemplary embodiments and comparative example 2 show that AKD is added in excess to exceed 1.5% by weight of raw materials for toilet paper, which can result in excessive absorption of Cobb, resulting in a Reduced water dissipation from toilet paper, which can prevent flushing into a toilet.

In Comparative Example 3, when the addition level of PAE in the raw material of toilet paper is less than 1% by weight, the wet tensile strength of toilet paper is too weak, and therefore a problem may arise. easy to burst when wrapping feces. On the other hand, observing the measurement results of Comparative Example 4, in which PAE is added to the raw material for toilet paper at a PAE addition level greater than 1.5% by weight, the tensile strength in wet is too strong, so water cannot be flushed from the toilet due to the poor dissolving properties of toilet paper.

Comparative Example 5 is a case showing the problem of reducing the strength of paper as a problem due to the rough wrinkles of toilet paper in which the number of folds is less than 10 folds. A rougher creping process means that the strata bend more severely and, since a decrease in dry tensile strength cannot be avoided, wet tensile strength may also weaken. Comparative Example 5 is a case showing the problem of reducing the strength of paper as a problem due to the rough wrinkles of toilet paper in which the number of folds is less than 10 folds. A rougher creping process means that the strata bend more severely and, since a decrease in dry tensile strength cannot be avoided, wet tensile strength may also weaken.

Therefore, as shown in Table 1, the sanitary paper 10 of the present disclosure can be provided with water resistance, wet strength, elasticity and water dispersibility together by optimally including 1.3% by weight of each one of AKD and PAE in order, in which the raw material of the toilet paper contains biodegradable cellulose made from recycled pulp, so the toilet paper that wraps dog feces can be disposed of in a toilet. According to the results of the comparative review of Embodiment 1 to Comparative Examples 6, even when 1 to 1.5% by weight of AKD and PAE are included in the raw materials of sanitary paper, water resistance, resistance wet, flexibility and dispersibility in water in a toilet, so that the toilet paper collected from the dog's feces can be disposed of in a toilet.

In the above, although all components constituting the embodiment of the present disclosure are described as combined or operated in combination, the present disclosure is not necessarily limited to this embodiment. That is, within the scope of the subject of the present disclosure, all components can be configured or operated by selectively combining one or more. In addition, terms such as "comprises", "comprises" or "has" described above mean that the corresponding component may be inherent, unless otherwise indicated, excluding other components. Rather, it should be interpreted as including other components as well. All terms, including technical and scientific terms, have the same meaning as commonly understood by one skilled in the art to which the present disclosure pertains, unless otherwise defined. Commonly used terms, such as dictionary-defined terms, should be interpreted as consistent with the contextual meaning of the related art and are not construed in an ideal or overly formal meaning unless explicitly defined in this disclosure.

Claims (7)

1. A method for manufacturing a sanitary paper for handling dog feces to properly dispose of dog feces, the method comprising: perform hydrophilization to impart water resistance to a sanitary paper by adding 1 to 1.5% by weight of an alkyl ketene dimer (AKD: Alkylketene Dimer), which is a neutral sizing agent as an internal sizing, for a paper raw material sanitary; add 1 to 1.5% by weight of polyamide polyamine epichlorohydrin (PAE) that serves as a wet strength enhancer to the toilet paper raw material so that the toilet paper produced has wet strength and water dispersibility; and crepe the produced toilet paper at a speed of 10 to 15 folds/cm in a toilet paper drying process to impart elasticity to the produced toilet paper and prevent dog feces from seeping through the toilet paper with which they are wrapped dog feces. 2. The method according to claim 1, wherein the ADD, which is a neutral sizing agent as an internal sizing agent, is added in an amount of 1.3% by weight of an AKD so that the sanitary paper produced has resistance to water. 3. The process according to claim 1, wherein the polyamide polyamine-epichlorohydrin (PAE), which is a wet strength enhancer, is added in an amount of 1.3% by weight so that the sanitary paper produced have wet resistance and dispersibility in water. 4. The method according to claim 1, wherein the toilet paper is wrinkled at a speed of 13 crepe/cm during the drying process to impart elasticity to the toilet paper and prevent feces from seeping through the toilet paper. 5. The method according to claim 1, wherein the toilet paper raw material contains biodegradable cellulose obtained from recycled pulp. 6. A sanitary paper for handling dog feces, the sanitary paper manufactured by the method of any of claims 1 to 5, the sanitary paper having water resistance, wet resistance, elasticity and dispersibility in water. 7. The toilet paper according to claim 6, wherein the toilet paper is made from a toilet paper raw material comprising biodegradable cellulose obtained from recycled pulp.